Detailed Product Description security door lock(mortise locks,zinc alloy door handle ,lock) 1) Material: stainless steel2) Finish: Nickel Brushed(NB) Satin Chrome(SC) Physical Vapor Deposition(PVD) Gold Plated(GP) Chrome Plated(CP) Pearl Nickel(PN) Brass Brushed(BS)security door lock(mortise locks,zinc alloy door handle ,lock) security door lock(mortise locks,lock,zinc alloy door handle)